EFFECTS OF PREDICTABLE VERSUS UNPREDICTABLE FEEDING SCHEDULES ON CHIMPANZEE BEHAVIOR
EFFECTS OF PREDICTABLE VERSUS UNPREDICTABLE FEEDING SCHEDULES ON CHIMPANZEE BEHAVIOR
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DOI：
10.1016/0168-1591(95)00570-i
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发表时间：
1995-08-01
影响因子：
2.3
通讯作者：
LAMBETH, SP
中科院分区：
文献类型：
--
作者：
BLOOMSMITH, MA;LAMBETH, SP
在饲喂浓缩方案的设计中，一个不常被研究的因素是提供浓缩的时间表。本研究旨在为灵长类动物群体的摄食计划管理决策提供定量依据，目的是从促进黑猩猩心理健康的角度出发，确定按可预测的时间表喂食新鲜农产品是否优于按不可预测的时间表喂食新鲜农产品。研究对象为生活在四个不同社会群体中的30只成年或青少年黑猩猩（Pan troglodytes）。在数据收集开始前5或6个月，将其中两组的喂养方式改为更不可预测的时间表；另外两组继续按照更可预测的时间进行饲喂，可预测餐在30分钟内饲喂，不可预测餐在150分钟内饲喂，在预喂期和基线期收集观察数据。重复测量的混合模型多变量方差分析显示，按照可预测的时间表喂食的黑猩猩在喂食前的不活动比在其他研究阶段更为普遍，异常行为也显示出类似的趋势。这些发现表明，更不可预测的喂养计划可能会导致物种适宜行为的增加，动物护理程序的安排值得那些进行改善圈养灵长类动物护理和福祉研究的人密切关注。
One factor not often studied in the design of feeding enrichment programs is the timetable according to which enrichments are offered. This study was performed to lend a quantitative basis to primate colony management decisions concerning feeding schedules, The objective was to determine whether feeding fresh produce meals on a predictable schedule was preferable to doing so on an unpredictable schedule from the perspective of promoting psychological well-being of chimpanzees, The subjects were 30 adult or adolescent chimpanzees (Pan troglodytes) living in four different social groups. Feeding practices were changed to a more unpredictable schedule for two of these groups, 5 or 6 months prior to the initiation of data collection; feeding of the other two groups continued on a more predictable schedule, The predictable meal was always fed within a 30 min period and the unpredictable meal was fed within a 150 min period, Observational data were collected during prefeeding and baseline periods. A mixed model multivariate analysis of variance for repeated measures revealed that inactivity was more prevalent in the prefeeding period for the chimpanzees fed on the predictable schedule than in the other study phases, and abnormal behavior showed a similar trend. These findings indicate that feeding on a more unpredictable schedule may lead to increased species-appropriate behavior, The scheduling of animal care routines deserves closer attention from those conducting research on improving care and well-being of captive primates.